In a series of articles, Bloomberg examined the wealth accumulated by Bo Xilai, who was the leader of China’s sprawling Chongqing municipality before being ousted in a scandal that erupted over the murder of a British businessman. The series discovered a web of assets stretching from Beijing to the Caribbean worth at least $126 million. The series also revealed how relatives of Xi Jinping enriched themselves.

Mr. Barboza’s three-part report in The Times, “Princelings,” examined the financial interests of high-ranking Chinese officials and their families. The articles showed that relatives of Prime Minister Wen Jiabao had accumulated a fortune of $2.7 billion.

The award for television reporting went to journalists from CBS News for their work uncovering human rights abuses in China. The correspondent Holly Williams and the cameraman Andrew Portch were recognized for their coverage of the human rights activist Chen Guangcheng, who fled China after years of being under house arrest for his work exposing how some Chinese women were forced to have abortions in order to comply with the country’s one-child policy.